搭建JUnit环境

1.项目中导入junit4.7\junit-4.7.jar

 

2.选择工程，新建源文件夹test-->New Source Folder

 

3.新建包，包应该与src下目录保持一致 com.fengyun.shopping.entity

 

4.New JUnit Test Case--->输入name：StudentTest--->Class under test:选择需要测试的类--->Next--->Finish

 

5.编写测试方法，在方法前加上@Test

package com.fengyun.shopping.entity;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.junit.Test;

public class StudentTest {
	@Test
	public void testStudentSave() {
		Student s = new Student();
		s.setId(1);
		s.setName("zhangsan");
		s.setAge(8);
		
		SessionFactory sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
		Session session = sessionFactory.getCurrentSession();
		session.beginTransaction();
		session.save(s);
		session.getTransaction().commit();
		
		sessionFactory.close;
	}
}

 
6.优化：SessionFactory创建非常消耗资源，只需要建立一次
 可以使用单例，静态代码块方法。
 这里使用加注解的方法：

package com.fengyun.shopping.entity;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;


public class StudentTest {
	private static SessionFactory sf;
	
	@BeforeClass
	public static void beforeClass() {
		try {
			sf = new AnnotationConfiguration().configure().buildSessionFactory();
		} catch (HibernateException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	@AfterClass
	public static void afterClass() {
		sf.close();
	}
	@Test
	public void testStudentSave() {
		Student s = new Student();
		s.setId(1);
		s.setName("zhangsan");
		s.setAge(8);
		
		Session session = sf.getCurrentSession();
		session.beginTransaction();
		session.save(s);
		session.getTransaction().commit();
				
	}
}

 
7.JUnit Bug（HibernateSessionFactory初始化异常不提示）解决:

try {
	sf = new AnnotationConfiguration().configure().buildSessionFactory();
} catch (HibernateException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
}

   

  加上主方法

public static void main(String[] args) {
	beforeClass();
}